Like any alpha quality product, Mixercast has many known (an unknown?) issues, team is working hard to fix/polish existing stuff (widget UI, interaction etc).

It is always helpful to hear feedback from real users (i.e. you), if you have any feedback, please leave a comment here or send an email to [mail at abdulqabiz.com]. I promise, I would try my best to work on feedback and make sure things get better.